Filter Offsets: Astronomik Deep Sky vs Type 2
Well, I have removed my original post! Thanks to Ray's comment I made an elementary mistake so there is no point in leaving this up at all. In my rush to avoid getting dust into my filter wheel I didn't check carefully enough what was put in which slot.
Sadly, I'm back to wondering if there is something not quite right about my TEC180 lens? I'm getting a shift of ca 200+ microns going from the Red focal point to the Blue focal point. It shouldn't be more than around 60 microns.
Thanks to everyone for helping me find this rookie mistake.
Peter
Last edited by PRejto; 20-01-2019 at 01:15 PM.
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